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MY JENSEN VM9021TS SOUND WENT OUT AN NOW A LOUD HUMMING EVEN WITH THE VOLUME AT ZERO

FIRST THE SOUND CUTS OUT, ONLY BASS, OK SO I PULL THE DECK OUT AND CHECK THE WIRES,, EVERYTHING LOOKS OK, I TURN IT ON ITS OK... ABOUT TEN MIN LATER BUMPN IT. OUT WITH THE SOUND AND ALL BASS. I TAP IT ON ITS RIGHT SIDE AND ALL SPEAKERS START HISSING LOUD SO I TURN THE VOL OFF AND THE SOUND CONTINUES TO SCRECH,, I TRY TURNING MAX VOL, NOW I HEAR THE MUSIC FAINT BUT CUTING OUT CRACKLING AND HISSING. WHAT CAUSED THAT? AND CAN IT BE FIXED?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 20 Answers

SOURCE: my jvc rx-6010v is OVERLOADING?

The very FIRST thing to check is to make certain ALL of your speakers have an IMPEDENCE of 8 OHMS. (JVC - and others - say SIX ohms, but 8 is the "standard" you should use.) Virtually all speakers of even modest quality will include this specification on a label on the back of the speaker. You CANNOT run more than (2) TWO speakers with 4 OHMs impedence on ANY amplifier (technical discussion too long!) [NOTE: The internal overload protection system you mention is designed to help prevent permanent damage. However, you cannot re-set these systems yourself. Your dealer or authorized JVC service center must do this. Note, though, that if you have attempted to "cheat" the system several times, damage CAN be done that requires servicing.] But, before you take the unit in for service, there is one more "test": check for shorted and/or mis-connected/disconnected speaker cables/wires. Visually inspect connections at the receiver and speakers first. You might find something obvious! If everything looks okay, then disconnect ALL of the speakers; and reconnect and test them one at a time (at relatively low volume.) For example, reconnect the left front speaker, test the system; THEN add the right front, test the system,and so on, ADDING one more speaker each time - FIRST MAKING SURE EACH OF THEM HAS AN IMPEDENCE OF AT LEAST 8 OHMS! IF there is a short (or bad speaker) this will help isolate it. Hopefully one of these "fixes" will work for you. GOOD LUCK!

Posted on Jul 18, 2007

  • 1694 Answers

SOURCE: Denon AVR-1601 Receiver

Check capacitors in power supply......also check for over-heated
resistors..all 1 ohm.....replace if cooked...................T.

Posted on Jan 05, 2008

  • 4234 Answers

SOURCE: MY YAMAHA RECIEVER KEEPS SHUTTING OFF

The unit is going into protection mode. The message is a generic one and usually means that the output section is drawing too much current and has been shut down. Defective speakers can cause this, but in this case, I suspect that there is a problem in the front end that is allowing DC current to pass to the output circuits. This will cause a problem that will shutdown the system. Yamaha designs are not the most straightforward nad I would not suggest you attempt this repair without prior repair experience. Take this to a service center and request a detailed repair estimate and report the results here. Armed with that info, we canguide you further.

Dan

Posted on Jul 19, 2009

  • 1 Answer

SOURCE: Hi, I have a AV-R720

Hi,
I have the same trouble with my av-r720 .
Did you solve the problem ??
Thanks

Marco

Posted on Dec 18, 2010

  • 2 Answers

SOURCE: Technics su z2 amp shuts off sound

hello. we cant help if we dont know what music source you are using.

Posted on Sep 01, 2012

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